Shuuko, Eika, Misaki, and Shio are roommates and friends making their way in the busy world of Tokyo, Japan!

Together they've been through thick and thin, but the pressures of adult life are beginning to take their toll. Shuuko worries that her laid-back nature is preventing her from finding love -- but is romance what she really wants? Things grow fraught as career-driven Eika works herself to burnout, finding herself taking out her frustration on her friends. Despite Misaki's best efforts to win the love of her "boyfriend," he tells her that he's not interested in marriage or even in deepening their two-year relationship. Meanwhile, warmhearted Shio is caught up by worries about her friends and what the future might bring for them.

Join these four roommates as they navigate the biggest question of their late twenties: What does happiness really mean?